This article deals with the extraction of a new original parameter to characterize a railway traffic driving smoothness indicator, and its investigation is based on data obtained from a neural train emulator. This indicator of driving smoothness is an example of the sustainable value of control command and signaling technology. The pro-social and pro-environmental aspects of smooth driving are indicated and the article proposes the introduction of a new indicator for assessing the quality of rail traffic, taking into account traffic on a micro scale—the driving smoothness of a single train (also called driving flow), derived from a parameter identified in the literature—and traffic smoothness (also called traffic flow), describing traffic quality on a macro scale. At the same time, the concept of a neural train emulator is presented, providing input data to determine the value of the proposed indicator for different train models and track systems in order to test the indicator’s properties. The concept proposes the structure of an artificial neural network, the technique of obtaining test data sets and the conditions of training the network as well. An emulator based on the neural network enables the simulation of train driving, taking into account its nonlinearity and data acquisition for indicator research.
This article presents a synthesis of the assessment opportunities for the implementation of automation of rail vehicles in Poland. The evaluation was to identify the threats to the implementation of automation of the above mentioned vehicles and then to assign to them the effects and probabilities of occurrence. For the purpose of probability estimation, a review of selected scientific, technical, formal and legal sources was carried out. Definitions of grades of automation (GoA) were given, assigning technical and safety functionalities to them. Functional classification has been made with regard to traffic safety. The problem of passengers' and drivers' social feelings towards the introduction of automatic vehicles has been pointed out. A formal and legal analysis of the possibility of implementing automatic rail vehicle traffic in Poland was also carried out.
This article refers to the nomenclature of modes of ERTMS/ETCS on-board equipment. The article presents descriptions of modes, the naming of specific modes used in Polish literature and the proposal of Polish naming of each of them. Moreover, article draws attention to the need of unifying the nomenclature and propagation of knowledge about the modes of the ERTMS/ETCS on-board equipment.
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